--- 以下原文
用maven也大幾年了劫流,也一直在用阿里云的中央倉(cāng)庫(kù)庇楞。
不喜歡在maven的settings.xml里改捏卓,更喜歡直接在pom.xml里改极祸,因?yàn)槭躦it管理,小伙伴們拉下來即可怠晴。
然而網(wǎng)上的大部分技術(shù)文章都只會(huì)指導(dǎo)你這么配置:
<repositories>
<repository>
<id>aliyun</id>
<url>https://maven.aliyun.com/repository/public</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
如果你只是配置了repositories遥金,那么你會(huì)發(fā)現(xiàn)在mvn在下載依賴的時(shí)候,一部分從阿里云下載蒜田,一部分還是從默認(rèn)的倉(cāng)庫(kù)(https://repo.maven.apache.org )下載稿械。
# mvn clean install
[INFO] Scanning for projects...
Downloading from aliyun: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-starter-parent/2.0.2.RELEASE/spring-boot-s
tarter-parent-2.0.2.RELEASE.pom
Downloaded from aliyun: http://maven.aliyun.com/nexus/content/groups/public/org/springframework/boot/spring-boot-starter-parent/2.0.2.RELEASE/spring-boot-st
arter-parent-2.0.2.RELEASE.pom (12 kB at 3.1 kB/s)
...
...
...
[INFO]
[INFO] --------------------------< com.zy:zy-parent >--------------------------
[INFO] Building zy-parent 1.0.0-SNAPSHOT
[INFO] --------------------------------[ pom ]---------------------------------
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/3.0.0/maven-clean-plugin-3.0.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/3.0.0/maven-clean-plugin-3.0.0.pom (4.8 kB at 2.2 k
B/s)
...
...
...
[INFO]
[INFO] --- maven-clean-plugin:3.0.0:clean (default-clean) @ zy-parent ---
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-plugin-api/3.0/maven-plugin-api-3.0.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-plugin-api/3.0/maven-plugin-api-3.0.pom (2.3 kB at 1.5 kB/s)
...
...
...
[INFO]
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ zy-parent ---
Downloading from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-plugin-api/2.2.1/maven-plugin-api-2.2.1.pom
Downloaded from central: https://repo.maven.apache.org/maven2/org/apache/maven/maven-plugin-api/2.2.1/maven-plugin-api-2.2.1.pom (1.5 kB at 1.2 kB/s)
...
...
...
[INFO] Installing E:\work\scratch\lily\src\zy-parent\pom.xml to D:\tools\maven\repo\com\zy\zy-parent\1.0.0-SNAPSHOT\zy-parent-1.0.0-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 04:25 min
[INFO] Finished at: 2019-11-14T10:13:53+08:00
[INFO] ------------------------------------------------------------------------
原來,只有項(xiàng)目本身的依賴冲粤,走了aliyun這個(gè)repository美莫,maven命令需要的插件(比如clean、install都是maven的插件)梯捕,走的還是默認(rèn)的repository厢呵。
查看maven的官方文檔(http://maven.apache.org/pom.html#Plugin_Repositories ),可以看到pom中除了repositories節(jié)點(diǎn)之外傀顾,還有一個(gè)關(guān)于倉(cāng)庫(kù)的節(jié)點(diǎn)是pluginRepositories:
Repositories are home to two major types of artifacts. The first are artifacts that are used as dependencies of other artifacts. These are the majority of plugins that reside within central. The other type of artifact is plugins. Maven plugins are themselves a special type of artifact. Because of this, plugin repositories may be separated from other repositories (although, I have yet to hear a convincing argument for doing so). In any case, the structure of the pluginRepositories element block is similar to the repositories element. The pluginRepository elements each specify a remote location of where Maven can find new plugins.
所以我們還需要再pom中增加pluginRepositories才可以襟铭。
這也是網(wǎng)上大部分文章里忽略掉的內(nèi)容。短曾。寒砖。。嫉拐。
最終的pom文件如下:
<repositories>
<repository>
<id>aliyun</id>
<url>https://maven.aliyun.com/repository/public</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>aliyun-plugin</id>
<url>https://maven.aliyun.com/repository/public</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
現(xiàn)在哩都,你可以清空本地maven倉(cāng)庫(kù)中的包,然后再次執(zhí)一下mvn clean install婉徘,看看是不是都走了阿里云的倉(cāng)庫(kù)了茅逮。